ECZ 2021 · GCE Paper 1 — Travel Graphs
The diagram is a speed-time graph of a moving car. The car decelerates uniformly from a speed of 24m/sto a speed of Vmsin 3 seconds. Find the speed V, if the deceleration in the first 3 seconds was 2m/s².
- A. 18 m/s
- B. 6 m/s
- C. 22 m/s
- D. 12 m/s
Verified working — step 1
In 3 seconds at 2 m/s² the car loses 2 × 3 = 6 m/s. So V = 24 − 6 = …The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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